EPJ Web of Conferences 24, 07004 (2012)
https://doi.org/10.1051/epjconf/20122407004

Optimization of ⁹⁰Sr/⁸⁹Sr measurements

Department of Nuclear Engineering and Fluid Mechanics University of the Basque Country (UPV/EHU) Alameda de Urquijo s/n 48013 Bilbao, Spain

^* E-mail: m.herranz@ehu.es

Abstract

One of the key points in the double measurement method for the measurement of both, ⁸⁹Sr and ⁹⁰Sr, by using a proportional counter is the choice of the times at which the measurements should be done. In this paper, the formulae to calculate the ⁸⁹Sr and ⁹⁰Sr detection limits in conditions of radioactive equilibrium between ⁹⁰Y and ⁹⁰Sr are derived, and an analysis of them as a function of the time between the two measurements is done. The choice for the time of the second measurement is going to depend on the desired quality of the results to be obtained.